Construction has topped the insolvency tables in England and Wales for so long that the figures barely register any more. In the 12 months to July 2026, 3,841 construction businesses became insolvent, around 17 per cent of all company failures where an industry was recorded, and 19 per cent higher than the 3,221 seen in the equivalent period in 2019. Specialised construction activities, meaning most subcontract trades, account for the largest single share.

What rarely gets discussed alongside those numbers is that the sector has just been handed, almost by accident, something that might help. Since 6 April 2026, hundreds of thousands of self-employed tradespeople have had to look at their own figures four times a year rather than once. That has been treated widely as an administrative burden. It is better understood as an early warning system.

What actually changed in April 2026

Making Tax Digital for Income Tax became mandatory on 6 April 2026 for sole traders and landlords whose gross qualifying income in 2024/25 exceeded £50,000. HMRC put the first wave at roughly 864,000 taxpayers. Those affected must keep digital records and file quarterly updates, due on 7 August and 7 November 2026, then 7 February and 7 May 2027, followed by a final declaration. The threshold falls to £30,000 in April 2027 and £20,000 in April 2028, pulling most self-employed trades into the regime.

The threshold catches more subcontractors than expected

The detail that catches subcontractors out is that qualifying income is measured gross, before any deduction is taken at source under the Construction Industry Scheme. Someone invoicing £55,000 across the year and banking £44,000 after a 20 per cent deduction has qualifying income of £55,000, not £44,000, and is already in scope. For anyone close to the line that distinction is worth checking early, and one reason more trades now take advice from a specialist such as a construction accountant in Essex rather than a general bookkeeper. Limited companies are unaffected, as plans for Making Tax Digital for Corporation Tax were dropped in 2025, but much of the sector still trades as sole traders.

Four deadlines, four chances to catch a problem

The quarterly rhythm has an obvious upside in a sector where failure is usually a matter of timing rather than a shortage of work. A profitable job can still sink a business if retentions sit unclaimed and materials are paid for months before the valuation lands. Four fixed points in the year create four natural moments to reconcile deductions against contractors’ payment and deduction statements, chase retention that has aged past its release date, and compare materials spend against turnover job by job.

The gains are unglamorous but real. One common pattern is the groundworks subcontractor who finds at the summer quarter close, rather than the following January, that one contractor’s deductions do not match the statements issued, leaving thousands of pounds of overpaid tax with HMRC a year longer than necessary. Another is the small builder who notices materials creeping from 35 to 45 per cent of turnover across two quarters. That is a pricing or wastage problem, and far cheaper to fix in month four than month twelve.

The soft landing is narrower than it looks

HMRC has confirmed that no late submission penalty points will be issued for quarterly updates during 2026/27, which has taken some pressure off the first year. The concession is narrower than it sounds. It does not extend to late payment, where a charge of 3 per cent of the outstanding tax applies at day 15 and again at day 30, with an annualised 10 per cent rate accruing daily from day 31. Quarterly updates must also be filed before the final declaration, so skipped quarters do not disappear. They accumulate into a January problem, which is the pattern the reform was meant to break.

Making the routine worth the effort

Three habits separate firms that get value from the new cycle from those that merely comply. Record income and costs against a job reference from the outset, so quarterly totals can be broken down when margins look wrong. Reconcile deduction statements monthly rather than hunting for them at the deadline. And review the figures after each submission with someone who understands construction contracts, retentions and applications for payment.

Quarterly reporting will not fix late payment, thin margins or the retention practices that squeeze the supply chain, and nobody in the sector asked for it. But businesses that survive difficult years tend to be the ones that spot trouble in month three rather than month eleven. Firms that treat the four updates as a genuine review will gain something the insolvency figures suggest is in short supply: time to react.